Sliding and pivotal window

Abstract

A sliding window structure has a facility for swiveling a sliding window element about a vertical axis for cleaning purposes and the like. The window element may be released from top and bottom confining tracks to allow for pivoting thereof by lowering the bottom track using adjustment screws provided for this purpose. The window element is pivotally suspended from the top track by a pivot pin threaded into a roller carriage received in the top track.

What is claimed as new is as follows: 
     
       1. A sliding window structure comprising at least one window element mounted in a support frame having top and bottom track members, at least one of which track members includes elongate guide means for receiving the window element and guiding same for lengthwise sliding along the frame, wherein said one track member includes screw adjustment means for moving the track member toward and away from an adjacent horizontal support frame member between positions wherein the guide means respectively receives the window element for guided sliding movement along the frame and releases the window element for swivelling movement of the window element in the frame about an axis perpendicular to the direction of the sliding of the window element, wherein the track member is the bottom track member, wherein the structure includes suspension means between the window element and the top track member for accommodating the longitudinal sliding and swivelling movements of the window element, and wherein the suspension means comprises a pivot pin extending from the window element through a lengthwise slot in the top track member, and a roller carriage received in a space in the top track member above the slot, the pin being rotatably connected to the roller carriage and the carriage having pairs of rollers on opposite sides of the pin for engagement with laterally spaced flanges of the top track member defining the slot. 
     
     
       2. The invention of claim 1 wherein the screw adjustment means comprises adjustment screws threaded through respective tapped holes in the track member with the base of each screw engaging said adjacent horizontal support frame member. 
     
     
       3. The invention of claim 1 wherein the pin has a threaded connection with the roller carriage. 
     
     
       4. A sliding window structure comprising at least one window element mounted in a support frame having top and bottom track members, at least one of which track members includes elongate guide means for receiving the window element and guiding same for lengthwise sliding along the frame, and adjustment means for moving the track member toward and away from an adjacent horizontal support frame member between positions wherein the guide means receives the window element for guided sliding movement along the frame and releases the window element for swivelling movement about an axis perpendicular to the direction of sliding movement of the window element, and suspension means between the window element and the top track member for accommodating the longitudinal sliding and swivelling movements of the window element, the suspension means comprising a pivot pin extending from the window element through a lengthwise slot in the top track member, and a roller carriage received in a space in the top track member above the slot, the pin being rotatably connected to the roller carriage and the roller carriage having rollers spaced laterally on opposite sides of the pin for engagement with laterally spaced flanges of the top track defining the slot. 
     
     
       5. The invention of claim 4 wherein the pin has a threaded connection with the roller carriage. 
     
     
       6. The invention of claim 4 wherein the adjustment means comprises adjustment screws threaded through respective tapped holes in the bottom track member with the bases of the screws engaging a lower horizontal member of the support frame.